1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/************************************************************************** 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * All Rights Reserved. 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright 2008 VMware, Inc. All rights Reserved. 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * "Software"), to deal in the Software without restriction, including 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * without limitation the rights to use, copy, modify, merge, publish, 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * distribute, sub license, and/or sell copies of the Software, and to 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * permit persons to whom the Software is furnished to do so, subject to 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the following conditions: 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * next paragraph) shall be included in all copies or substantial portions 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * of the Software. 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org **************************************************************************/ 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * TGSI program scan utility. 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Used to determine which registers and instructions are used by a shader. 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Authors: Brian Paul 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "util/u_math.h" 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "tgsi/tgsi_parse.h" 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "tgsi/tgsi_util.h" 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "tgsi/tgsi_scan.h" 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Scan the given TGSI shader to collect information such as number of 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * registers used, special instructions used, etc. 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * \return info the result of the scan 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgtgsi_scan_shader(const struct tgsi_token *tokens, 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tgsi_shader_info *info) 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org uint procType, i; 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tgsi_parse_context parse; 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org memset(info, 0, sizeof(*info)); 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < TGSI_FILE_COUNT; i++) 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_max[i] = -1; 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /** 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ** Setup to begin parsing input shader 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org **/ 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (tgsi_parse_init( &parse, tokens ) != TGSI_PARSE_OK) { 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org debug_printf("tgsi_parse_init() failed in tgsi_scan_shader()!\n"); 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org procType = parse.FullHeader.Processor.Processor; 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(procType == TGSI_PROCESSOR_FRAGMENT || 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org procType == TGSI_PROCESSOR_VERTEX || 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org procType == TGSI_PROCESSOR_GEOMETRY || 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org procType == TGSI_PROCESSOR_COMPUTE); 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /** 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ** Loop over incoming program tokens/instructions 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org while( !tgsi_parse_end_of_tokens( &parse ) ) { 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_tokens++; 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tgsi_parse_token( &parse ); 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch( parse.FullToken.Token.Type ) { 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_INSTRUCTION: 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_instruction *fullinst 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org = &parse.FullToken.FullInstruction; 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org uint i; 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST); 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->opcode_count[fullinst->Instruction.Opcode]++; 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < fullinst->Instruction.NumSrcRegs; i++) { 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_src_register *src = 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org &fullinst->Src[i]; 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org int ind = src->Register.Index; 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Mark which inputs are effectively used */ 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (src->Register.File == TGSI_FILE_INPUT) { 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned usage_mask; 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org usage_mask = tgsi_util_get_inst_usage_mask(fullinst, i); 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (src->Register.Indirect) { 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (ind = 0; ind < info->num_inputs; ++ind) { 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_usage_mask[ind] |= usage_mask; 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } else { 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(ind >= 0); 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(ind < PIPE_MAX_SHADER_INPUTS); 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_usage_mask[ind] |= usage_mask; 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_FRAGMENT && 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.File == TGSI_FILE_INPUT && 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->reads_position && 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.Index == 0 && 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (src->Register.SwizzleX == TGSI_SWIZZLE_Z || 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleY == TGSI_SWIZZLE_Z || 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleZ == TGSI_SWIZZLE_Z || 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleW == TGSI_SWIZZLE_Z)) { 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->reads_z = TRUE; 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* check for indirect register reads */ 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (src->Register.Indirect) { 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->indirect_files |= (1 << src->Register.File); 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* check for indirect register writes */ 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < fullinst->Instruction.NumDstRegs; i++) { 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_dst_register *dst = &fullinst->Dst[i]; 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (dst->Register.Indirect) { 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->indirect_files |= (1 << dst->Register.File); 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_instructions++; 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_DECLARATION: 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_declaration *fulldecl 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org = &parse.FullToken.FullDeclaration; 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const uint file = fulldecl->Declaration.File; 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org uint reg; 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (reg = fulldecl->Range.First; 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org reg <= fulldecl->Range.Last; 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org reg++) { 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* only first 32 regs will appear in this bitfield */ 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_mask[file] |= (1 << reg); 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_count[file]++; 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_max[file] = MAX2(info->file_max[file], (int)reg); 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (file == TGSI_FILE_INPUT) { 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_semantic_name[reg] = (ubyte)fulldecl->Semantic.Name; 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_semantic_index[reg] = (ubyte)fulldecl->Semantic.Index; 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_interpolate[reg] = (ubyte)fulldecl->Interp.Interpolate; 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_centroid[reg] = (ubyte)fulldecl->Interp.Centroid; 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->input_cylindrical_wrap[reg] = (ubyte)fulldecl->Interp.CylindricalWrap; 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_inputs++; 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_FRAGMENT && 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->reads_position = TRUE; 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (file == TGSI_FILE_SYSTEM_VALUE) { 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned index = fulldecl->Range.First; 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org unsigned semName = fulldecl->Semantic.Name; 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->system_value_semantic_name[index] = semName; 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_system_values = MAX2(info->num_system_values, 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org index + 1); 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->system_value_semantic_name[info->num_system_values++] = 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name; 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (fulldecl->Semantic.Name == TGSI_SEMANTIC_INSTANCEID) { 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->uses_instanceid = TRUE; 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (fulldecl->Semantic.Name == TGSI_SEMANTIC_VERTEXID) { 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->uses_vertexid = TRUE; 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org else if (file == TGSI_FILE_OUTPUT) { 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->output_semantic_name[reg] = (ubyte)fulldecl->Semantic.Name; 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->output_semantic_index[reg] = (ubyte)fulldecl->Semantic.Index; 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_outputs++; 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_VERTEX && 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name == TGSI_SEMANTIC_CLIPDIST) { 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->num_written_clipdistance += util_bitcount(fulldecl->Declaration.UsageMask); 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* extra info for special outputs */ 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_FRAGMENT && 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->writes_z = TRUE; 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_FRAGMENT && 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name == TGSI_SEMANTIC_STENCIL) 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->writes_stencil = TRUE; 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (procType == TGSI_PROCESSOR_VERTEX && 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fulldecl->Semantic.Name == TGSI_SEMANTIC_EDGEFLAG) { 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->writes_edgeflag = TRUE; 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_IMMEDIATE: 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org uint reg = info->immediate_count++; 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org uint file = TGSI_FILE_IMMEDIATE; 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_mask[file] |= (1 << reg); 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_count[file]++; 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->file_max[file] = MAX2(info->file_max[file], (int)reg); 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_PROPERTY: 228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_property *fullprop 230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org = &parse.FullToken.FullProperty; 231f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 232f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->properties[info->num_properties].name = 233f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fullprop->Property.PropertyName; 234f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org memcpy(info->properties[info->num_properties].data, 235f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org fullprop->u, 8 * sizeof(unsigned));; 236f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 237f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ++info->num_properties; 238f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 239f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 240f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 241f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 242f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert( 0 ); 243f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 244f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 245f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 246f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->uses_kill = (info->opcode_count[TGSI_OPCODE_KIL] || 247f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->opcode_count[TGSI_OPCODE_KILP]); 248f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 249f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* extract simple properties */ 250f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org for (i = 0; i < info->num_properties; ++i) { 251f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (info->properties[i].name) { 252f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_PROPERTY_FS_COORD_ORIGIN: 253f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->origin_lower_left = info->properties[i].data[0]; 254f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 255f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER: 256f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->pixel_center_integer = info->properties[i].data[0]; 257f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 258f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS: 259f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org info->color0_writes_all_cbufs = info->properties[i].data[0]; 260f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 261f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 262f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ; 263f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 264f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 265f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 266f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tgsi_parse_free (&parse); 267f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 268f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 269f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 270f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 271f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** 272f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Check if the given shader is a "passthrough" shader consisting of only 273f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * MOV instructions of the form: MOV OUT[n], IN[n] 274f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 275f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 276f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgboolean 277f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgtgsi_is_passthrough_shader(const struct tgsi_token *tokens) 278f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 279f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tgsi_parse_context parse; 280f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 281f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /** 282f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ** Setup to begin parsing input shader 283f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org **/ 284f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (tgsi_parse_init(&parse, tokens) != TGSI_PARSE_OK) { 285f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org debug_printf("tgsi_parse_init() failed in tgsi_is_passthrough_shader()!\n"); 286f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return FALSE; 287f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 288f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 289f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /** 290f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ** Loop over incoming program tokens/instructions 291f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 292f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org while (!tgsi_parse_end_of_tokens(&parse)) { 293f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 294f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tgsi_parse_token(&parse); 295f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 296f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (parse.FullToken.Token.Type) { 297f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_INSTRUCTION: 298f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 299f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct tgsi_full_instruction *fullinst = 300f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org &parse.FullToken.FullInstruction; 301f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_src_register *src = 302f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org &fullinst->Src[0]; 303f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct tgsi_full_dst_register *dst = 304f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org &fullinst->Dst[0]; 305f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 306f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* Do a whole bunch of checks for a simple move */ 307f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org if (fullinst->Instruction.Opcode != TGSI_OPCODE_MOV || 308f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (src->Register.File != TGSI_FILE_INPUT && 309f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.File != TGSI_FILE_SYSTEM_VALUE) || 310f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst->Register.File != TGSI_FILE_OUTPUT || 311f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.Index != dst->Register.Index || 312f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 313f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.Negate || 314f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.Absolute || 315f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 316f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleX != TGSI_SWIZZLE_X || 317f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleY != TGSI_SWIZZLE_Y || 318f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleZ != TGSI_SWIZZLE_Z || 319f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org src->Register.SwizzleW != TGSI_SWIZZLE_W || 320f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 321f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org dst->Register.WriteMask != TGSI_WRITEMASK_XYZW) 322f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 323f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tgsi_parse_free(&parse); 324f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return FALSE; 325f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 326f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 327f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 328f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 329f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_DECLARATION: 330f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* fall-through */ 331f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_IMMEDIATE: 332f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* fall-through */ 333f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case TGSI_TOKEN_TYPE_PROPERTY: 334f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* fall-through */ 335f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 336f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org ; /* no-op */ 337f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 338f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 339f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 340f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org tgsi_parse_free(&parse); 341f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 342f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org /* if we get here, it's a pass-through shader */ 343f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return TRUE; 344f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 345